Multi-lumen Surgical Cannula for Combined Saline and Suction
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Solution Overview
Problem
Current arthroscopic and laparoscopic surgical procedures require multiple small incisions for saline supply and waste removal, increasing trauma to connective tissue and prolonging recovery time, while also risking additional skin trauma from instrument interactions.
Innovation Solution
A translucent or transparent plastic cannula with integrated saline water supply and vacuum ports that allows surgical instrumentation to pass through, reducing the need for additional incisions by combining these functions with the instrument passage, and featuring a design that withstands impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate incisions are made for saline supply and waste removal, then each function can be performed independently, but the number of incisions increases causing more tissue trauma and longer recovery time
Solution Approach 1:
The patent combines multiple separate incisions into a single integrated cannula structure that accommodates both saline supply and waste removal functions. The cannula includes multiple lumens or channels within a single external structure, allowing fluid injection and suction to occur through one incision site rather than multiple separate incisions, thereby reducing tissue trauma while maintaining functional independence of each fluid pathway
Solution Approach 2:
The cannula is designed as a multi-functional device that simultaneously performs saline supply, waste removal, and instrument passage through a single structure. This universal design allows the same cannula to handle multiple surgical functions that would traditionally require separate incisions and devices, reducing the overall number of incisions needed while maintaining all necessary surgical capabilities
2Reliability
If separate incisions are made for saline supply and waste removal, then each function has dedicated access, but the number of incisions increases prolonging procedure time
Solution Approach 1:
The patent merges multiple access points into a single cannula structure with internal channels for saline supply and waste removal. This consolidation reduces the time required to make and manage multiple separate incisions while maintaining dedicated pathways for each function within the unified cannula design
3Reliability
If multiple incisions are made for different surgical functions, then each function has optimal access, but the complexity of the surgical procedure increases
Solution Approach 1:
The cannula is designed as a universal multi-functional device that integrates saline supply, waste removal, and instrument passage capabilities in a single structure. This reduces surgical procedure complexity by eliminating the need to manage multiple separate incisions and devices, while maintaining optimal access for all surgical functions through the unified cannula design
Data Source
AI summary
The invention relates to a surgical cannula for introducing instruments, scopes or tubing into body cavities while saline water can be provided or waste material can be removed at the same time. and within the same incision. The cannula has a tee shape with two ports on sides and is capable to combines the uses of supply saline water, remove damaged material and perform manipulation of surgical instruments within an incision. The cannula invention reduced at least one incision and saved time during surgical procedures.